Regulation of the mechanical properties of thermoplastic carbon fiber-reinforced plastics by changing their production conditions and surface treatment of the fibers

Abstract

At present, the interest in polymer composites is still growing. Thermoplastic carbon fiber-reinforced plastics attract particular attention because of their high strength, high elastic modulus, electrical conductivity, low friction coefficient, and recyclability. In making products from CFRPs with high physical-mechanical properties, all stages of the process of their production and processing are important, which include preparation of the components, method of introducing a reinforcing filler in the polymer matrix, and molding technology of the final product. The introduction of fibers into CFRPs ivcreeses their physical-mechanical characteristics, the higher the length of the fibers and the degree of filling, the higher the increase. We should note that the attainment of high physical-mechanical properties of fibrous composites is hindered by processes taking place in the prodessing equipment (extruder, casting machine) itself [1]. To process filled thermoplastic composites, it is necessary to maintain technological conditions where the fibrous filler would suffer minimum failure in the working units of the processing equipment.